diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb4')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/Makefile | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/cm.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/device.c | 7 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/id_table.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 5 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/provider.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 17 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/restrack.c | 501 |
9 files changed, 531 insertions, 16 deletions
diff --git a/drivers/infiniband/hw/cxgb4/Kconfig b/drivers/infiniband/hw/cxgb4/Kconfig index 0a671a61fc92..e0522a5d5a06 100644 --- a/drivers/infiniband/hw/cxgb4/Kconfig +++ b/drivers/infiniband/hw/cxgb4/Kconfig @@ -1,6 +1,7 @@ config INFINIBAND_CXGB4 tristate "Chelsio T4/T5 RDMA Driver" depends on CHELSIO_T4 && INET + depends on INFINIBAND_ADDR_TRANS select CHELSIO_LIB select GENERIC_ALLOCATOR ---help--- diff --git a/drivers/infiniband/hw/cxgb4/Makefile b/drivers/infiniband/hw/cxgb4/Makefile index fa40b685831b..9edd92023e18 100644 --- a/drivers/infiniband/hw/cxgb4/Makefile +++ b/drivers/infiniband/hw/cxgb4/Makefile @@ -3,4 +3,5 @@ ccflags-y += -Idrivers/net/ethernet/chelsio/libcxgb obj-$(CONFIG_INFINIBAND_CXGB4) += iw_cxgb4.o -iw_cxgb4-y := device.o cm.o provider.o mem.o cq.o qp.o resource.o ev.o id_table.o +iw_cxgb4-y := device.o cm.o provider.o mem.o cq.o qp.o resource.o ev.o id_table.o \ + restrack.o diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 4cf17c650c36..0912fa026327 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -3210,6 +3210,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ep->com.cm_id = cm_id; ref_cm_id(&ep->com); + cm_id->provider_data = ep; ep->com.dev = dev; ep->com.qp = get_qhp(dev, conn_param->qpn); if (!ep->com.qp) { diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index 44161ca4d2a8..a3c3418afd73 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -859,8 +859,9 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev) rdev->status_page->cq_size = rdev->lldi.vr->cq.size; if (c4iw_wr_log) { - rdev->wr_log = kzalloc((1 << c4iw_wr_log_size_order) * - sizeof(*rdev->wr_log), GFP_KERNEL); + rdev->wr_log = kcalloc(1 << c4iw_wr_log_size_order, + sizeof(*rdev->wr_log), + GFP_KERNEL); if (rdev->wr_log) { rdev->wr_log_size = 1 << c4iw_wr_log_size_order; atomic_set(&rdev->wr_log_idx, 0); @@ -1445,7 +1446,7 @@ static void recover_queues(struct uld_ctx *ctx) ctx->dev->db_state = RECOVERY; idr_for_each(&ctx->dev->qpidr, count_qps, &count); - qp_list.qps = kzalloc(count * sizeof *qp_list.qps, GFP_ATOMIC); + qp_list.qps = kcalloc(count, sizeof(*qp_list.qps), GFP_ATOMIC); if (!qp_list.qps) { spin_unlock_irq(&ctx->dev->lock); return; diff --git a/drivers/infiniband/hw/cxgb4/id_table.c b/drivers/infiniband/hw/cxgb4/id_table.c index 5c2cfdea06ad..724d23297b35 100644 --- a/drivers/infiniband/hw/cxgb4/id_table.c +++ b/drivers/infiniband/hw/cxgb4/id_table.c @@ -92,8 +92,8 @@ int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num, alloc->last = 0; alloc->max = num; spin_lock_init(&alloc->lock); - alloc->table = kmalloc(BITS_TO_LONGS(num) * sizeof(long), - GFP_KERNEL); + alloc->table = kmalloc_array(BITS_TO_LONGS(num), sizeof(long), + GFP_KERNEL); if (!alloc->table) return -ENOMEM; diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 831027717121..870649ff049c 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -55,6 +55,7 @@ #include <rdma/iw_cm.h> #include <rdma/rdma_netlink.h> #include <rdma/iw_portmap.h> +#include <rdma/restrack.h> #include "cxgb4.h" #include "cxgb4_uld.h" @@ -1082,4 +1083,8 @@ extern int use_dsgl; void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey); struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp); +typedef int c4iw_restrack_func(struct sk_buff *msg, + struct rdma_restrack_entry *res); +extern c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX]; + #endif diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index 0b9cc73c3ded..1feade8bb4b3 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -551,6 +551,13 @@ static struct net_device *get_netdev(struct ib_device *dev, u8 port) return ndev; } +static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res) +{ + return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) && + c4iw_restrack_funcs[res->type]) ? + c4iw_restrack_funcs[res->type](msg, res) : 0; +} + void c4iw_register_device(struct work_struct *work) { int ret; @@ -645,6 +652,7 @@ void c4iw_register_device(struct work_struct *work) dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; dev->ibdev.iwcm->get_qp = c4iw_get_qp; + dev->ibdev.res.fill_res_entry = fill_res_entry; memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, sizeof(dev->ibdev.iwcm->ifname)); diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index ae167b686608..aef53305f1c3 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -216,15 +216,15 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, } if (!user) { - wq->sq.sw_sq = kzalloc(wq->sq.size * sizeof *wq->sq.sw_sq, - GFP_KERNEL); + wq->sq.sw_sq = kcalloc(wq->sq.size, sizeof(*wq->sq.sw_sq), + GFP_KERNEL); if (!wq->sq.sw_sq) { ret = -ENOMEM; goto free_rq_qid; } - wq->rq.sw_rq = kzalloc(wq->rq.size * sizeof *wq->rq.sw_rq, - GFP_KERNEL); + wq->rq.sw_rq = kcalloc(wq->rq.size, sizeof(*wq->rq.sw_rq), + GFP_KERNEL); if (!wq->rq.sw_rq) { ret = -ENOMEM; goto free_sw_sq; @@ -1297,8 +1297,7 @@ static void post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe, set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); - wqe = __skb_put(skb, sizeof(*wqe)); - memset(wqe, 0, sizeof *wqe); + wqe = __skb_put_zero(skb, sizeof(*wqe)); wqe->op_compl = cpu_to_be32(FW_WR_OP_V(FW_RI_INIT_WR)); wqe->flowid_len16 = cpu_to_be32( FW_WR_FLOWID_V(qhp->ep->hwtid) | @@ -1421,8 +1420,7 @@ static int rdma_fini(struct c4iw_dev *rhp, struct c4iw_qp *qhp, set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); - wqe = __skb_put(skb, sizeof(*wqe)); - memset(wqe, 0, sizeof *wqe); + wqe = __skb_put_zero(skb, sizeof(*wqe)); wqe->op_compl = cpu_to_be32( FW_WR_OP_V(FW_RI_INIT_WR) | FW_WR_COMPL_F); @@ -1487,8 +1485,7 @@ static int rdma_init(struct c4iw_dev *rhp, struct c4iw_qp *qhp) } set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); - wqe = __skb_put(skb, sizeof(*wqe)); - memset(wqe, 0, sizeof *wqe); + wqe = __skb_put_zero(skb, sizeof(*wqe)); wqe->op_compl = cpu_to_be32( FW_WR_OP_V(FW_RI_INIT_WR) | FW_WR_COMPL_F); diff --git a/drivers/infiniband/hw/cxgb4/restrack.c b/drivers/infiniband/hw/cxgb4/restrack.c new file mode 100644 index 000000000000..9a7520ee41e0 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/restrack.c @@ -0,0 +1,501 @@ +/* + * Copyright (c) 2018 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <rdma/rdma_cm.h> + +#include "iw_cxgb4.h" +#include <rdma/restrack.h> +#include <uapi/rdma/rdma_netlink.h> + +static int fill_sq(struct sk_buff *msg, struct t4_wq *wq) +{ + /* WQ+SQ */ + if (rdma_nl_put_driver_u32(msg, "sqid", wq->sq.qid)) + goto err; + if (rdma_nl_put_driver_u32(msg, "flushed", wq->flushed)) + goto err; + if (rdma_nl_put_driver_u32(msg, "memsize", wq->sq.memsize)) + goto err; + if (rdma_nl_put_driver_u32(msg, "cidx", wq->sq.cidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "pidx", wq->sq.pidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->sq.wq_pidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "flush_cidx", wq->sq.flush_cidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "in_use", wq->sq.in_use)) + goto err; + if (rdma_nl_put_driver_u32(msg, "size", wq->sq.size)) + goto err; + if (rdma_nl_put_driver_u32_hex(msg, "flags", wq->sq.flags)) + goto err; + return 0; +err: + return -EMSGSIZE; +} + +static int fill_rq(struct sk_buff *msg, struct t4_wq *wq) +{ + /* RQ */ + if (rdma_nl_put_driver_u32(msg, "rqid", wq->rq.qid)) + goto err; + if (rdma_nl_put_driver_u32(msg, "memsize", wq->rq.memsize)) + goto err; + if (rdma_nl_put_driver_u32(msg, "cidx", wq->rq.cidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "pidx", wq->rq.pidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->rq.wq_pidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "msn", wq->rq.msn)) + goto err; + if (rdma_nl_put_driver_u32_hex(msg, "rqt_hwaddr", wq->rq.rqt_hwaddr)) + goto err; + if (rdma_nl_put_driver_u32(msg, "rqt_size", wq->rq.rqt_size)) + goto err; + if (rdma_nl_put_driver_u32(msg, "in_use", wq->rq.in_use)) + goto err; + if (rdma_nl_put_driver_u32(msg, "size", wq->rq.size)) + goto err; + return 0; +err: + return -EMSGSIZE; +} + +static int fill_swsqe(struct sk_buff *msg, struct t4_sq *sq, u16 idx, + struct t4_swsqe *sqe) +{ + if (rdma_nl_put_driver_u32(msg, "idx", idx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "opcode", sqe->opcode)) + goto err; + if (rdma_nl_put_driver_u32(msg, "complete", sqe->complete)) + goto err; + if (sqe->complete && + rdma_nl_put_driver_u32(msg, "cqe_status", CQE_STATUS(&sqe->cqe))) + goto err; + if (rdma_nl_put_driver_u32(msg, "signaled", sqe->signaled)) + goto err; + if (rdma_nl_put_driver_u32(msg, "flushed", sqe->flushed)) + goto err; + return 0; +err: + return -EMSGSIZE; +} + +/* + * Dump the first and last pending sqes. + */ +static int fill_swsqes(struct sk_buff *msg, struct t4_sq *sq, + u16 first_idx, struct t4_swsqe *first_sqe, + u16 last_idx, struct t4_swsqe *last_sqe) +{ + if (!first_sqe) + goto out; + if (fill_swsqe(msg, sq, first_idx, first_sqe)) + goto err; + if (!last_sqe) + goto out; + if (fill_swsqe(msg, sq, last_idx, last_sqe)) + goto err; +out: + return 0; +err: + return -EMSGSIZE; +} + +static int fill_res_qp_entry(struct sk_buff *msg, + struct rdma_restrack_entry *res) +{ + struct ib_qp *ibqp = container_of(res, struct ib_qp, res); + struct t4_swsqe *fsp = NULL, *lsp = NULL; + struct c4iw_qp *qhp = to_c4iw_qp(ibqp); + u16 first_sq_idx = 0, last_sq_idx = 0; + struct t4_swsqe first_sqe, last_sqe; + struct nlattr *table_attr; + struct t4_wq wq; + + /* User qp state is not available, so don't dump user qps */ + if (qhp->ucontext) + return 0; + + table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER); + if (!table_attr) + goto err; + + /* Get a consistent snapshot */ + spin_lock_irq(&qhp->lock); + wq = qhp->wq; + + /* If there are any pending sqes, copy the first and last */ + if (wq.sq.cidx != wq.sq.pidx) { + first_sq_idx = wq.sq.cidx; + first_sqe = qhp->wq.sq.sw_sq[first_sq_idx]; + fsp = &first_sqe; + last_sq_idx = wq.sq.pidx; + if (last_sq_idx-- == 0) + last_sq_idx = wq.sq.size - 1; + if (last_sq_idx != first_sq_idx) { + last_sqe = qhp->wq.sq.sw_sq[last_sq_idx]; + lsp = &last_sqe; + } + } + spin_unlock_irq(&qhp->lock); + + if (fill_sq(msg, &wq)) + goto err_cancel_table; + + if (fill_swsqes(msg, &wq.sq, first_sq_idx, fsp, last_sq_idx, lsp)) + goto err_cancel_table; + + if (fill_rq(msg, &wq)) + goto err_cancel_table; + + nla_nest_end(msg, table_attr); + return 0; + +err_cancel_table: + nla_nest_cancel(msg, table_attr); +err: + return -EMSGSIZE; +} + +union union_ep { + struct c4iw_listen_ep lep; + struct c4iw_ep ep; +}; + +static int fill_res_ep_entry(struct sk_buff *msg, + struct rdma_restrack_entry *res) +{ + struct rdma_cm_id *cm_id = rdma_res_to_id(res); + struct nlattr *table_attr; + struct c4iw_ep_common *epcp; + struct c4iw_listen_ep *listen_ep = NULL; + struct c4iw_ep *ep = NULL; + struct iw_cm_id *iw_cm_id; + union union_ep *uep; + + iw_cm_id = rdma_iw_cm_id(cm_id); + if (!iw_cm_id) + return 0; + epcp = (struct c4iw_ep_common *)iw_cm_id->provider_data; + if (!epcp) + return 0; + uep = kcalloc(1, sizeof(*uep), GFP_KERNEL); + if (!uep) + return 0; + + table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER); + if (!table_attr) + goto err_free_uep; + + /* Get a consistent snapshot */ + mutex_lock(&epcp->mutex); + if (epcp->state == LISTEN) { + uep->lep = *(struct c4iw_listen_ep *)epcp; + mutex_unlock(&epcp->mutex); + listen_ep = &uep->lep; + epcp = &listen_ep->com; + } else { + uep->ep = *(struct c4iw_ep *)epcp; + mutex_unlock(&epcp->mutex); + ep = &uep->ep; + epcp = &ep->com; + } + + if (rdma_nl_put_driver_u32(msg, "state", epcp->state)) + goto err_cancel_table; + if (rdma_nl_put_driver_u64_hex(msg, "flags", epcp->flags)) + goto err_cancel_table; + if (rdma_nl_put_driver_u64_hex(msg, "history", epcp->history)) + goto err_cancel_table; + + if (epcp->state == LISTEN) { + if (rdma_nl_put_driver_u32(msg, "stid", listen_ep->stid)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "backlog", listen_ep->backlog)) + goto err_cancel_table; + } else { + if (rdma_nl_put_driver_u32(msg, "hwtid", ep->hwtid)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "ord", ep->ord)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "ird", ep->ird)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "emss", ep->emss)) + goto err_cancel_table; + + if (!ep->parent_ep && rdma_nl_put_driver_u32(msg, "atid", + ep->atid)) + goto err_cancel_table; + } + nla_nest_end(msg, table_attr); + kfree(uep); + return 0; + +err_cancel_table: + nla_nest_cancel(msg, table_attr); +err_free_uep: + kfree(uep); + return -EMSGSIZE; +} + +static int fill_cq(struct sk_buff *msg, struct t4_cq *cq) +{ + if (rdma_nl_put_driver_u32(msg, "cqid", cq->cqid)) + goto err; + if (rdma_nl_put_driver_u32(msg, "memsize", cq->memsize)) + goto err; + if (rdma_nl_put_driver_u32(msg, "size", cq->size)) + goto err; + if (rdma_nl_put_driver_u32(msg, "cidx", cq->cidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "cidx_inc", cq->cidx_inc)) + goto err; + if (rdma_nl_put_driver_u32(msg, "sw_cidx", cq->sw_cidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "sw_pidx", cq->sw_pidx)) + goto err; + if (rdma_nl_put_driver_u32(msg, "sw_in_use", cq->sw_in_use)) + goto err; + if (rdma_nl_put_driver_u32(msg, "vector", cq->vector)) + goto err; + if (rdma_nl_put_driver_u32(msg, "gen", cq->gen)) + goto err; + if (rdma_nl_put_driver_u32(msg, "error", cq->error)) + goto err; + if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts", + be64_to_cpu(cq->bits_type_ts))) + goto err; + if (rdma_nl_put_driver_u64_hex(msg, "flags", cq->flags)) + goto err; + + return 0; + +err: + return -EMSGSIZE; +} + +static int fill_cqe(struct sk_buff *msg, struct t4_cqe *cqe, u16 idx, + const char *qstr) +{ + if (rdma_nl_put_driver_u32(msg, qstr, idx)) + goto err; + if (rdma_nl_put_driver_u32_hex(msg, "header", + be32_to_cpu(cqe->header))) + goto err; + if (rdma_nl_put_driver_u32(msg, "len", be32_to_cpu(cqe->len))) + goto err; + if (rdma_nl_put_driver_u32_hex(msg, "wrid_hi", + be32_to_cpu(cqe->u.gen.wrid_hi))) + goto err; + if (rdma_nl_put_driver_u32_hex(msg, "wrid_low", + be32_to_cpu(cqe->u.gen.wrid_low))) + goto err; + if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts", + be64_to_cpu(cqe->bits_type_ts))) + goto err; + + return 0; + +err: + return -EMSGSIZE; +} + +static int fill_hwcqes(struct sk_buff *msg, struct t4_cq *cq, + struct t4_cqe *cqes) +{ + u16 idx; + + idx = (cq->cidx > 0) ? cq->cidx - 1 : cq->size - 1; + if (fill_cqe(msg, cqes, idx, "hwcq_idx")) + goto err; + idx = cq->cidx; + if (fill_cqe(msg, cqes + 1, idx, "hwcq_idx")) + goto err; + + return 0; +err: + return -EMSGSIZE; +} + +static int fill_swcqes(struct sk_buff *msg, struct t4_cq *cq, + struct t4_cqe *cqes) +{ + u16 idx; + + if (!cq->sw_in_use) + return 0; + + idx = cq->sw_cidx; + if (fill_cqe(msg, cqes, idx, "swcq_idx")) + goto err; + if (cq->sw_in_use == 1) + goto out; + idx = (cq->sw_pidx > 0) ? cq->sw_pidx - 1 : cq->size - 1; + if (fill_cqe(msg, cqes + 1, idx, "swcq_idx")) + goto err; +out: + return 0; +err: + return -EMSGSIZE; +} + +static int fill_res_cq_entry(struct sk_buff *msg, + struct rdma_restrack_entry *res) +{ + struct ib_cq *ibcq = container_of(res, struct ib_cq, res); + struct c4iw_cq *chp = to_c4iw_cq(ibcq); + struct nlattr *table_attr; + struct t4_cqe hwcqes[2]; + struct t4_cqe swcqes[2]; + struct t4_cq cq; + u16 idx; + + /* User cq state is not available, so don't dump user cqs */ + if (ibcq->uobject) + return 0; + + table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER); + if (!table_attr) + goto err; + + /* Get a consistent snapshot */ + spin_lock_irq(&chp->lock); + + /* t4_cq struct */ + cq = chp->cq; + + /* get 2 hw cqes: cidx-1, and cidx */ + idx = (cq.cidx > 0) ? cq.cidx - 1 : cq.size - 1; + hwcqes[0] = chp->cq.queue[idx]; + + idx = cq.cidx; + hwcqes[1] = chp->cq.queue[idx]; + + /* get first and last sw cqes */ + if (cq.sw_in_use) { + swcqes[0] = chp->cq.sw_queue[cq.sw_cidx]; + if (cq.sw_in_use > 1) { + idx = (cq.sw_pidx > 0) ? cq.sw_pidx - 1 : cq.size - 1; + swcqes[1] = chp->cq.sw_queue[idx]; + } + } + + spin_unlock_irq(&chp->lock); + + if (fill_cq(msg, &cq)) + goto err_cancel_table; + + if (fill_swcqes(msg, &cq, swcqes)) + goto err_cancel_table; + + if (fill_hwcqes(msg, &cq, hwcqes)) + goto err_cancel_table; + + nla_nest_end(msg, table_attr); + return 0; + +err_cancel_table: + nla_nest_cancel(msg, table_attr); +err: + return -EMSGSIZE; +} + +static int fill_res_mr_entry(struct sk_buff *msg, + struct rdma_restrack_entry *res) +{ + struct ib_mr *ibmr = container_of(res, struct ib_mr, res); + struct c4iw_mr *mhp = to_c4iw_mr(ibmr); + struct c4iw_dev *dev = mhp->rhp; + u32 stag = mhp->attr.stag; + struct nlattr *table_attr; + struct fw_ri_tpte tpte; + int ret; + + if (!stag) + return 0; + + table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER); + if (!table_attr) + goto err; + + ret = cxgb4_read_tpte(dev->rdev.lldi.ports[0], stag, (__be32 *)&tpte); + if (ret) { + dev_err(&dev->rdev.lldi.pdev->dev, + "%s cxgb4_read_tpte err %d\n", __func__, ret); + return 0; + } + + if (rdma_nl_put_driver_u32_hex(msg, "idx", stag >> 8)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "valid", + FW_RI_TPTE_VALID_G(ntohl(tpte.valid_to_pdid)))) + goto err_cancel_table; + if (rdma_nl_put_driver_u32_hex(msg, "key", stag & 0xff)) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "state", + FW_RI_TPTE_STAGSTATE_G(ntohl(tpte.valid_to_pdid)))) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "pdid", + FW_RI_TPTE_PDID_G(ntohl(tpte.valid_to_pdid)))) + goto err_cancel_table; + if (rdma_nl_put_driver_u32_hex(msg, "perm", + FW_RI_TPTE_PERM_G(ntohl(tpte.locread_to_qpid)))) + goto err_cancel_table; + if (rdma_nl_put_driver_u32(msg, "ps", + FW_RI_TPTE_PS_G(ntohl(tpte.locread_to_qpid)))) + goto err_cancel_table; + if (rdma_nl_put_driver_u64(msg, "len", + ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo))) + goto err_cancel_table; + if (rdma_nl_put_driver_u32_hex(msg, "pbl_addr", + FW_RI_TPTE_PBLADDR_G(ntohl(tpte.nosnoop_pbladdr)))) + goto err_cancel_table; + + nla_nest_end(msg, table_attr); + return 0; + +err_cancel_table: + nla_nest_cancel(msg, table_attr); +err: + return -EMSGSIZE; +} + +c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX] = { + [RDMA_RESTRACK_QP] = fill_res_qp_entry, + [RDMA_RESTRACK_CM_ID] = fill_res_ep_entry, + [RDMA_RESTRACK_CQ] = fill_res_cq_entry, + [RDMA_RESTRACK_MR] = fill_res_mr_entry, +}; 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